Transfer mechanism for key-set



April 30, 1940. G. J. BARRETT TRANSFER MECHANISM FOR KEY-SET ADDINGMACHINES Filed May 6, 1938 5 Sheets-Sheet 1 INVENTOR Glenn Jflairez.

ATTORN EYS p i 0, 1940. G. .LBARRETT 2.199.253

TRANSFER MECHANISM FOR KEY-SET ADDING MACHINES Filed May 6, 1938 5Sheets-Sheet 2 INVENTOR ATTORN EYS Ap 30, 1940. G. J. BARRETT 2.199. 53

TRANSFER MECHANISM FOR KEY-SET ADDING MACHINES Filed May 6, 1938 5Sheets-Sheet 5 ATTO R N EYS April 30, 1940- G. J. BARRETT 2,199,253

I TRANSFER MECHANISM FOR KEY-SET ADDING MACHINES Filed May '6, 1938 5Sheets-Sheet 4 April 30, 1940- G. J. BARRETT Z.1@9,253

I TRANSFER MECHANISM FOR KEY-SET ADDING MACHINES Filed May 6, 1938 5Sheets-Sheet INVENTO R 6 /617121 Bwrat BY yam/Sim ATTORN EYS PatentedApr. 30, 1940 PATENT OFFICE TRANSFER MECHANISM FOR KEY-SET ADDINGMACHINES Glenn J. Barrett, Syracuse, N. Y., assignor to L. C. Smith &Corona Typewriters,

Inc.,

Syracuse, N. Y., a corporation of New York Application May 6, 1938,Serial No. 206,378

11 Claims.

This invention relates to improvements in means for transferring thetens from one denomination to the next higher, in adding machines of thekey-set classification having a keyboard of numeral keys arranged indenomina tional order, an oscillating main operating mechanism,oscillating actuating sectors, totalizer units periodically inengagement with said oscillating sectors respectively, a printingmechanism, a total key, and connections for positioning operativemembers to the end that the correct total as registered upon saidtotalizers may be recorded, governed by the rotation of said totalizersbackwardly to the zero point,--features understood by those familiarwith this art and illustrated in Patent No. 1,811,8 issued June Theinvention as illustrated in the drawings and described herein comprisesa planetary connection between a driving member and its cooperatingoscillating sector in each denominational column, as a means foreffecting the transfer of the tens by the movement of a cooperatingtransfer lever. The invention alsoincludes a resetting means, and meansfor rendering said resetting means inoperative for the purposeshereinafter set forth. 1

One of the important objects of this invention is to provide meanswhereby change in the zone of adding movement of the sectors is effectedat any point during addition when any one of the totalizers passes the 9point, the final accumulation of the transferred unit being transmittedto the accumulators during the adding of the final unit. By positioningthe zone of movement one space toward the rear the accumulators arerotated one space farther than normally in accumulating the actualnumber set up in the respective columns. By reason of the fact that inthis invention the transferring of the tens is accomplished duringactual additions, no portion of the movement of the main operatingmechanism need be reserved for this purpose; nor is it necessary to havemeans for accurately timing the transfer mechanism with relation to theactual adding movement in order tosecure an accurate transfer of thetens.

The invention is illustrated as applied to a keyset adding machine ofthe type shown and described in Patent No. 1,811,840 dated June 30,1931, wherein the totalizers are mounted in a swinging frame, themovement of which frame through the main operating mechanism shifts thetotalizer units out of and into mesh with the actuating sectors, thisbeing an operation common to machines of this class.

In the drawings,

Fig. 1 is a diagrammatic side elevation showing the main operating camand the total keyand connections for controlling the total-takingoperation;

Fig. 2 a diagrammatic sectional view showing the transfer mechanismassociated with a keyboard of the type shown in Patent No. 1,811,840 fordetermining the extent of movement of the adding sectors;

Fig. 3 a detail view, partly in section, of the transfer mechanism withparts in normal positions before a transfer;

Fig. i an end elevation of the parts shown in Fig. 3;

Fig. 5 a view similar to Fig. 3 showing the position of the apparatusafter the transfer operation;

Fig. 6 a detail side elevation of a totali'zer unit;

Fig. '7 a detail view of the transfer mechanism, the parts in positionfor adding 9;

Fig. 8 a detail side elevation, partly in section, of one of the addingsectors and its associated operating parts;

Fig. 9 a detail view of one of the drivers;

Fig. 10 a detail view of one of the transfer levers;

Fig. 11 a partial front elevation of the means for operating theresetting bail; and

Fig. 12 a partial plan view of the totalizer frame showing the totalizerunits therein.

Referring to the various parts by numerals, i designates the mainoscillating actuating shaft adapted to be operated by handle l indicatedby dotted lines in Fig. 1, and 2 the main actuating cam mounted on themain shaft. 3 designates the total key and 4 a total-clearing leverpivotally mounted at 5 and connected to the total lever by pin 6,whereby said lever may be oscillated through the total lever. A spring Ireturns the total-clearing lever to normal position after actuation bythe total key 3. Below the main operating cam is mounted a pivoted arm 8on the forward end of which is mounted a rockable lever 9 having anupwardly eiitending arm carrying a roller i0 and a downwardly. extendingarm carrying a roller II. On the arm 8 is arranged a pin i2, and thelever 9 is formed with a stop lug l3 which engages said pin to hold theroller H) in its normal operative position.- A spring l4 holds the stoplug I3 yieldingly in contact with the pin I2. The roller It is normallyin position to be engaged by the high portion l5 of the main cam whenthe main operating shaft is rotated in an anti-clockwise direction bythe handle operation as indicated by the arrow in Fig. 1. The portion l5of the main operating cam 2, when it engages the roller l0, forcesdownwardly the arm 8 and, through the link It connecting said arm 8 tothe lever swings the totalizer frame upwardly and demeshes the addingsectors from the totalizer wheels. The return of the main operating camto its normal position permits the spring Hi to move the totalizer frameto return the totalizer wheels into mesh with the adding sectors.

When the total key 3 is moved rearwardly the lower end IQ of thetotal-clearing lever engages the roller ll of lever 9 and swings saidlever on its pivot and moves the roller I out of the path of the highportion of the main operating cam. The oscillation of the main operatingcam. then has no effect upon the accumulator frame and the totalizerwheels remain in mesh with the adding sectors.

Any suitable means may be employed for moving the totalizer frame tomesh and demesh the totalizer wheels with the actuating sectors, and anysuitable means actuated through the movement of the total-taking key maybe employed for disabling the totalizer-frame-moving means during thetotal-taking operation. The mechanism shown forms no part of thisinvention and is illustrated merely as indicating one form of themechanism in a key-set adding machine for accomplishing the desired andnecessary operations of the totalizer unit.

The adding sectors are connected by links 2!] to the stop slides 2|which are provided with stop ears or lugs 22 adapted to engage the tailstops 23 of the keys 24. The stop slides 2| limit the movement of theadding sectors in accordance with the depression of the keys 24 asdescribed in connection with the operation of the adding sectors in theaforesaid Patent No. 1,811,840, and need not be more fully describedherein. Any suitable form of key-set means for determining the extent ofthe movement of the adding sectors may be employed.

The actuating or adding sectors are positioned for additions and thispositioning is determined and limited by the depression of the numeralkeys in the various columns. During the forward movement of the mainoperating mechanism the totalizers are moved out of engaging relation,

with cooperating sectors, and the sectors positioned for addingmovements. During the return movement of the main operating mechanismthe totalizers are returned to engaging relation with their actuatingsectors and the sectors forced back to normal position as illustrated inFig. 3, these movements being well understood by those familiar withthis art.

In the present invention adding sectors 25 are pivotally mounted at 26upon a suitable cross rod mounted in the frame of the machine, andoscillate thereon; are arc-shaped and provided with gear teeth on theirarcuate outer edges adapted to engage the teeth of the totalizerpinions. A sector driver 21 is provided for each sector 25, said driversbeing pivoted axially with the sectors 25 on the same transverse pivotrod. Each driver 21 is connected by suitable linkage to cooperatingtype-positioning means through link 28 in order to position the type forprinting.

As shown in Fig. 2, link 28 is connected at its lower end to theforwardly extending arm of a type positioning lever 10 mounted forvertical swinging movement on a cross rod TI. The rear end of therearwardly extending arm of said lever may be connected to a type bar 12to position the type for printing. A spring 13 is connected to theforwardly extending arm of lever 10 and to a cross bar in the machineframe to assist in moving the lever on its pivot to pull down the links28 and raise the type bar. A main operating bail 14 is mounted on thecross rod The cross rod 16 of the main operating bail normally engagesthe lower edge of the forwardly extending arm of the type positioninglever ill to normally position and hold said lever and the driver 21connected to it by link 28, in normal at rest position. A spring 11 isconnected to link 28 near its upper end, the lower end of said springbeing connected to the cross rod 16 of the ball 14. It is to beunderstood that all of this mechanism, except the main operating ball,is repeated for each denominational order. The slide 2| is released formovement by the depresslon of its associated key 24, as is usual inmachines of this type.

The main operating bail I4 is moved downwardly by suitable means (notshown) actuated by the main shaft on the forward stroke of the operatinghandle. As said bail moves downwardly it extends spring which thenexerts a downward pull on link 28 and the connected driver 21. If a key24 has been depressed, the stop slide 2| connected to the adding sector25 will permit the driver to move the associated sector 25 until theslide 2| is stopped by the depressed key. The downward movement of thelink 28 will swing the type-positioning lever and raise the type bar toprinting position. On the return stroke of the operating handle the mainoperating bail is raised to normal position thereby returning the lever10 to normal position, and through link 28 and the connected driver,moving the adding sector in adding direction and restoring the connectedstop slide 2| to its normal position.

Each sector driver is in the form of a bell crank lever, one arm ofwhich is connected to the link 28. The other arm of said bell crankextends substantially radially of the axis of the lever and carries aplanetary gear 29, which is in effect a toothed lever, rotatably mountedthereon and arranged close to the side of its cooperating adding sector25. tor 25 is provided with pins 30 arranged in an arc concentric withthe axis of the sector and forming gear teeth which engage the teeth ofthe cooperating planetary gear 29.

Mounted co-axially with the adding sectors and adapted to oscillate onthe same transverse pivot rod are transfer levers 3|. These levers areformed with fulcrum teeth 32 concentric with their axes, which mesh withteeth of the planetary gears 29. The free ends of the substantiallyradial locking arms 33 of these transfer levers are formed with lookingnotches 33 and catch-positioning surfaces 33 which are adapted to beengaged by suitable catches. Radially arranged resetting lugs 34 arecarried by the transfer levers and are adapted to be engaged by aresetting ball, as hereinafter described.

It will be understood that there is an adding sector, a sector driverwith its planetary gear. and a transfer lever for each denominationalcolumn, the number depending upon the capacity of the machine.

The totalizers are mounted in a swinging frame 35 pivoted on atransverse cross bar 36 suitably mounted and positioned in the frame ofthe Each adding secmachine. The frame is connected to lever I1 in suchmanner that it will be movedupwardly to carry the totalizer wheels outof mesh with the geared adding sectors 25 and into engagement with thestationary detent fingers 31, and then back into engagement with theadding sectors, through the operation of the main actuating mechanism,as hereinbefore described. The detents 5'! may be suitably supported inthe frame'of the machine, there being one detent for each accumulatorwheel mounted in the totalizer frame.

Each totalizer unit comprises a hub 38, a driving pinion 39 with tenteeth, a dial portion 40 carrying numerals 0 to 9 on its face, and atrigger 4|. There is a totalizer unit for each denominational column,the number depending upon the capacity of the machine. The totalizerunits are mounted to rotate on a transverse rod 48 mounted in theswinging frame 35. The swinging frame 35 is divided longitudinally byplates 35 into sections or compartments, and in each of saidcompartments is arranged one totalizer unit as shown clearly in Fig. 12.The division plates 35 are mounted at their ends on the cross rods 35and 42. If it is not desired to have the total accumulated in thetotalizer visible, the dials 41! may be omitted.

' Pivotally mounted on the cross bar 42 in th free end of the swingingframe 35 are transfertripping levers 43. Each transfer-tripping leverhas a depending latch-releasing arm 44 extending substantiallyvertically downward from the pivot rod 42, and a trigger-engaging arm 45extending into position to be engaged by the trigger 4| of thecooperating accumulator unit. There is one transfer-tripping lever foreach accumulator unit. Each transfer-tripping lever is provided with aspring 46 to return it to normal position after it has been tripped oractuated by its cooperating trigger 4|. The springs 46 normally hold thetripping levers 43 in position against the transfer stop bar 41 mountedin the swinging frame 35.

On a cross rod 49 suitably supported in the frame of the machine arepivotally mounted a catch. 50 and a series of catches 5|. Catch 50 isformed with an arm 5|) having an inturned lug 5|! engaging the lockingnotch 33 of the locking arm 33 of the transfer lever 3| of the firstcolumn. Catch 5!] is also formed with an arm 5|] having an inturned stopfinger 50 adapted to be engaged by a stop shoulder, formed by a notch 25in the adding sector 25 of the first column, when lug 50 is in lockingnotch 33 This catch 50 serves to restrain or hold the transfer lever 3|against the tension of the spring 3P. A spring 52 holds the catch 50 inengagement with the transfer lever 3| with. stop finger 5n in positionto be engaged in the notch 25* of the adding sector 25.

There is a catch 5| for the second column and for each column of higherdenomination. Each catch 5| is formed with an arm 5| having at its lowerend an inturned locking lug 5| adapted to engage the notch 33 of arm 33of its cooperating transfer lever 3|. Each catch 5| is also formed withan upwardly extending arm 5l having at its upper end an inturned stopfinger 5| adapted to engage a stop shoulder formed by the notch 25 inits cooperating adding sector 25. The arm 5| is also formed with anoutwardly turned trip finger 5| which extends into the path of and isadapted to be engaged by depending catch-releasing arm 44 of thetransfer-tripping lever 43 of the totalizer unit of the next lowerdenominational order. A spring 53 is connected to each catch 5|, saidsprings yieldingly holding said catches in engagement with theircooperating .transfer levers 3| with stop fingers 5V in position to beengaged by the stop shoulders formed by notches 25. Each adding sector25 is formed with a notch or step 25 to form a stop shoulder which isadapted to engage the stop finger 5i of the cooperating catch 5|, whensaid catch is tripped to move 5| out of line with the stop shoulder ofnotch 25 and release the locking lug 5| from its cooperating transferlever 3|. This construction permits the adding sector to move one spacein adding direction when the catch is released through the operation ofthe cooperating transfer-tripping lever 43, as will be hereinafterdescribed. When the locking lug 55 is released from notch 33 spring 3|swings the transfer lever on its pivot and locking lug 5l rides on theedge 33 and the stop finger 51 is held in position to be engaged by theshoulder formed by the notch 25.

The catch 50 of the first column is not provided with a trip-engagingfinger corresponding to the fingers 5| of the catches 5|, because thereis no transfer to the first column and obviously there is notransfer-tripping lever 43 for that column. A transfer lever 3| andcatch therefor are provided for the first column in order that theplanetary gear of the first column will be rotated about the teeth 32 ofthe transfer lever to give the adding sector a movement correspondingwith the movement of the sectors in the higher denominational columnsboth in positioning the type for printing and in the adding operation.The trip lever43 of the last denominational column, whatever may be thecapacity of the machine, functions only as a stop for the trigger 4|cooperating therewith in the totaling operation.

A transfer-resetting bail extends across th adding machine to which theinvention is applied. This bail comprises two end plates 54 pivotallysupported on a cross rod 55 suitably mounted in the machine frame. Thefree ends of these end plates are connected together by a rod 55 whichis adapted to engage the resetting lugs 34 of the transfer levers 3|. ashereinafter described. A spring 5! normally holds the resett ng bail upagainst the fixed stop 58. The normal upper position of the rod 56 ofthe resetting bail is shown in Figs. 2, 3 and 5. Pivotally mounted onthe rod 56 at one end of the resetting bail is a depending resettingbail operating arm 59. The lower end of this operating arm is formedwith a hook 60. Pivotally connected to the total-clearing lever 4 is alink 5| formed with a slot 52 in its free end. The operatin arm 59carries a pin 63 which extends into slot 52, as shown clearly in Fig. 1.

A rocking arm 84 is pivoted at 55 on a suitable mounting in the machineframe, and. a spring 66 connected to the lower end of the arm 64 and toa suitable mounting in the machine frame maintains the rocking arm 54 inits normal position. The arm 54 carries a roller 51 adjacent theperiphery of the main operating cam 2; and said cam carries a projection58 which extends below the lower edge of the cam 2 when said cam is inits normal or at-rest position. The projection 68 is adapted to enga gethe roller '61 when the cam is rotated in counterclockwise directionthrough the operating handle. This contact between the projection 68 andthe roller 61 moves the arm 64 on its pivot and causes a pin 69, carriedby said arm 84, to engage the hook 60 of the resetting bail operatingarm 59. This .will result in a downward movement of the resetting bail,said downward movement being indicated in dotted lines in Figs. 3 and 5.In said downward movement of the resetting bail the cross bar 56 willengage the resetting lugs 34 of any transfer levers that have beenreleased for the transfer of tens, and will restore said transfer leversto their normal position and interlock them with the catches 5(|5|, or50 if the transfer lever of the first column has been pre viouslyreleased. This operation of the resetting bail will take place duringthe initial movement of the main operating cam.

It is necessary to render the resetting mechanism inoperative during atotal-taking operation. When the total-clearing lever 4 is moved throughthe operation of the total key 3 the link 6| is moved rearwardly and theend wall of the slot 62 engages the pin 63 and swings the resetting bailoperating arm 59 rearwardly sufficiently to take the book 60 out of thepath of movement of the pin 69 on the arm 64. The subsequent operationof the main cam will then move the arm 64 through an idle stroke and theresetting bail will not be moved for a resetting operation In the returnmovement of the oscillating main cam the arm 64 will be swung forward inan idle motion due to the contact of the projection 68 with the roller61.

Operation The number to be added is set up by depressing the numeralkeys in the keyboard of the proper denominational orders. The mainoperating handle is pulled forward in the direction indicated by thearrow in Fig. 1, to oscillate the main operating cam. The first part ofthe movement of the main operating cam swings the accumulator frameupwardly to move the accumulator pinions out of mesh with the teeth ofthe adding sectors and into engagement with the detents 37. Theprojection 68 on the main operating cam then engages the roller on arm64 and swings it into position to bring pin 69 into engagement with hook60 of the arm 59 of the resetting bail frame. The resetting bail willthen be pulled downwardly to causethe bar 56 to engage the resettinglugs 34 of the transfer levers to reset back to normal any sectors thathave been advanced by a transfer operation. The further movement of themain operating shaft brings about the movement of the adding sectors tothe proper positions as determined by the depressed numeral keys inorder to set up. through the type-positioning means connected to drivers21, the numeral to be added, and recorded if the adding machine isprovided with a printing mechanism. These operations are substantiallythe same as those described in the machine shown in Patent No.1,811,840. Upon the return movement of the operating handle and the mainoperating cam carried by the main shaft, the accumulator frame islowered to bring the accumulator wheels back into mesh with the teeth ofthe adding sectors and then, upon the return of the adding sectors tonormal position, the number set up is added in the accumulator, all ofwhich is common to key-set adding machines of the type herein described.

When the adding sector of any column moves forward to a position foradding "9 it rests in the position illustrated in Fig. 7. Because of therotation of the gear 29 mounted on the driver 21 and meshing with theteeth 32 of the transfer lever, which during this operation is heldstationary by its cooperating catch, the cooperating adding sector ismoved a greater distance around its pivot than the driver. This isbecause the pinion 29 is also in mesh with the pins 30 on the sector andthe rotation of the gear results in an added movement of the sector. Asindicated in Fig. '7, when a sector moves forward to a position foradding 9 it moves through an arc of 6'7 while its driver moves only 50%,which relative degrees of movement are determined by the relative pitchdiameters of the gear 29 and the teeth 32 upon the transfer levers 3|.It is obvious that each adding sector will move circumferentially agreater distance than its cooperating driver, in each operation ofsetting up a number to be added and in adding that number. This, ofcourse, is due to the interposition of the planetary gear 29 which actsas a lever fulcrumed on the teeth 32 of the cooperating transfer lever.It is desirable, for accurate setting of the type, to give thetype-positioning drivers a shorter arc of movement than the addingsectors receive when they move to position for setting up the number tobe added.

As the parts are shown in Figs. 3 and 4 an accumulator wheel of a lowerorder is in the 9 position and its trigger 4| is directly under andalmost in contact with the trigger-engaging arm 45 of thetransfer-tripping lever 43 of the next higher denominational order. Therotation of the accumulator wheel of the lower denominational order onespace for the purpose of adding 1 will cause its trigger 4| to swing thetransfer-tripping lever on its pivot, causing its depending end 44 tocontact the finger 5| of the catch 5| and thereby release the lockinglug 5| from its cooperating transfer lever 3| and also move the inturnedstop finger 5| from the path of the stop shoulder formed by notch 25 ofits cooperating adding sector and place it in the path of the stopshoulder formed by the notch 25', lug 5| riding on surface 33 andholding the stop finger 5| in proper position. This will permit thespring 3| to move the transfer lever on its pivot until the resettinglug 34 contacts the bar 56 of the resetting bail. The driver 21 carryinggear 29 is stationary during this movement of the transfer lever. Themovement of the transfer lever around its pivot will rotate theplanetary gear 29 because the teeth 32 of that lever are in mesh withthat gear. The rotation of the gear 29 in mesh with the pins 30 on thecooperating adding sector will move the adding sector one space inadding direction and correspondingly move the totalizer wheel in meshtherewith.

The movement of the adding sector one space in adding direction toaccomplish the transfer changes the zone of adding movement one space.This transfer movement of the adding sector is in addition to the addingmovement of said adding sector. However, the zone of the adding movementwill be shifted one space to the rear or in adding direction. Themovement of the adding sector one space for transfer does not affect oralter the position of the associated driver 21 and the printinginstrumentalities connected to said driver, so that when the printinginstrumentalities and the connected driver return to normal position inthe adding operation the adding sector will have been moved the requirednumber of spaces to accumulate in the totalizer the number set up foradding and recording.

- When a transfer lever has been released for transfer and its resettinglug 34 is in contact with the resetting bail bar 56 the transfer leverwill be held stationary during the adding movement of its associatedadding sector. The trans fer levers are held stationary at all timeseither by the locking lug 5 I engaging the locking notch 33 of thetransfer lever, or by the resetting lug 34 engaging the resetting bailbar 56, except for the instant of transfer movement when catch 5| istripped by the tripping lever.

As shown in Fig. 5 the adding sector has completed its adding movementafter its transfer movement and the stop shoulder formed by the notch 25is in engagement with the stop finger 5| of the associated catch 5!. Thenotch 25 permitted the adding sector to move the one extra space inadding direction which was necessary for the adding movement of thesector. For the next adding operation the resetting bail bar 56 will bemoved downwardly to reset the transfer levers, and the resetting ofthese levers will move the adding sectors one space forward to theirnormal position, and the stop finger Bi of the catch ill will move intoengagement with the stop shoulder formed by the notch 25 The locking lug5t will engage the locking notch 33 of the transfer lever.

The total may be taken at any time after an adding operation by merelypressing the total key and then moving the operating handle in the usualmanner for an adding operation. In taking a total it is necessary todisable the resetting bail and that is accomplished through the linkconnection between the total-taking lever and theresetting-bail-operating arm 59. In a total-taking operation theaccumulator wheels and the adding sectors remain in mesh and thebackward rotation, or return, of the accumulator wheels to zero willresult in setting up, through the typepositioning means connected to theadding sectors, the correct total to be printed. It will be unnecessaryto perform any special operation of any part of the mechanism in orderto prepare the total-taking means for operation because, as previouslydescribed, the Zone of adding movement will have been moved one space inthe direction of addition, which in no manner affects the positioning ofthe type for, printing a total. By reason of this change of zone ofmovement of the sector it is obvious that when totaling, a return of anytotalizer to zero causes a movement of its cooperating sector a numberof adding spaces equal to the numeral representing the accumulation uponsaid totalizer, there being no pick-up of the transfer movementnecessary for correct total positioning of type as in said Patent No.1,811,840 referred to herein. It is only necessary to operate thetotal-taking key before moving the handle for the operation of themechanism.

What I claim is:

1. In a calculating machine of the class described having pivotedoscillating adding sector concentric with its axis, an oscillatingdriver for the adding sector pivotally mounted co-axially therewith, aplanetary gear carried by the driver in mesh with the teeth of thetransfer lever, gear teeth on the adding sector meshing with the teethon the planetary gear, a pivoted catch holding the transfer leveragainst movement and adapted to be engaged by the transfer trippingmeans of the accumulator unit of the next lower order to release saidcatch from the transfer lever, means to move said transfer lever on itspivot when released from the said catch and thereby to move the addingsector one space in adding direction, the adding sector being formedwith two stop shoulders, one of said shoulders being adapted to engagethe said pivoted catch at the limit of the normal adding movement of thesector and the other stop shoulder being adapted to engage said catch atthe limit of the additional one space adding movement of the sector whenactuated for transfer, and means to hold the catch in position to beengaged by the last mentioned shoulder after it has been released fromthe transfer lever.

2. In a calculating machine of the class described, the combination of atransfer lever pivoted axially in association with a pivoted addingsector and formed with gear teeth in an are concentric with its axis, anoscillating driver for the adding sector pivotally mounted co-axiallythere with, a planetary gear carried by the driver in mesh with theteeth of the transfer lever, gear teeth on the adding sector meshingwith the teeth on the planetarygear, a pivoted catch holding thetransfer lever against movement and adapted to be engaged by thetransfer tripping means of the accumulator unit of the next lower orderto release said catch from the transfer lever, means to move saidtransfer lever on its pivot when released from the said catch andthereby to move the adding sector one space in adding direction, theadding sector being formed with two stop shoulders, one of saidshoulders being adapted to engage the said pivoted catch at the limit ofthe normal adding movement of the sector and the other stop shoulderbeing adapted to engage said catch at the limit of the additional onespace adding movement of the sector when actuated for transfer, andmeans formed on the transfer lever adapted to be engaged by the catch tohold the catch in position to be engaged by the shoulder on the addingsector after the said catch has been released from the transfer lever.

3. In a calculating machine of the class described having pivotedoscillating adding sector racks and accumulator registering unitsconsisting of actuating pinions and transfer tripping means associatedwith the adding racks in denominational order and a main oscillatingoperating cam, the combination of an oscillating driver, meansconnecting said driver to an oscillating adding sector to impart to saidsector a normal adding movement in an arc in excess of the arc ofmovement of the driver, said means comprising a planetary gear rotatablymounted on the driver and in engagement with gear teeth on the addingsector, an oscillatable transfer lever axially mounted with reference tosaid sector and having fulcrum gear teeth concentric with its axis andin engagement with the planetary gear, a movable stop for retaining thetransfer lever in normal operating position and adapted to be moved outof engagement with said transfer lever by the transfer tripping means ofthe next lower order, a spring for moving said transfer lever whenreleased from said retaining stop and thereby to move the adding sectorone space in adding direction, means operated by the main operating camfor re-positioning said transfer lever for engagement with the movablestop after the movement of said transfer lever by said spring, a totallever, and means connected thereto for disabling the transfer leverre-positioning means by the actuation of said total lever.

4. In a calculating machine of the class described having pivotedoscillating adding sector racks and accumulator registering unitsconsisting of actuating pinions and transfer tripping means associatedwith the adding racks in denominational order, the combination of atransfer lever pivoted axially in association with an adding sector andformed with gear teeth in an arc concentric with its axis, anoscillating driver for the adding sector pivotally mounted co-axiallytherewith, a planetary gear carried by the driver in mesh with the teethof the transfer lever, gear teeth on the adding sector meshing with theteeth on the planetary gear, a pivoted catch holding the transfer leveragainst movement and adapted to be engaged by the transfer trippingmeans of the accumulator unit of the next lower order to release saidcatch from the transfer lever, and means to move said transfer lever onits pivot when released from the said catch and thereby to move theadding sector one space in adding direction, the adding sector beingformed with two stop shoulders, one of said shoulders being adapted toengage the said pivoted catch at the limit of the normal adding movementof the sector and the other stop shoulder being adapted to engage saidcatch at the limit of the additional one space adding movement of thesector when actuated for transfer.

5. In a calculating machine of the class described having pivotedoscillating adding sector racks and accumulator registering unitsconsisting of actuating pinions and transfer tripping means associatedwith the adding racks in denominational order, the combination of atransfer lever pivoted axially in association with an adding sector andformed with gear teeth in an arc concentric with its axis, anoscillating driver for the adding sector pivotally mounted coaxial- 1ytherewith and adapted to be connected to cooperating type-positioningmeans, a planetary gear carried by said driver in mesh with the teeth ofthe transfer lever, gear teeth on the adding sector meshing with teethon the planetary gear, a pivoted catch normally holding the transferlever against movement and forming a stop to limit the adding movementof the adding sector and adapted to be engaged by the transfer trippingmeans of the accumulator unit of the next lower order to release saidcatch from the transfer lever, and means to move said transfer leverwhen released from its catch and thereby move the adding sector onespace in adding direction for the transfer of tens, the adding sectorbeing formed with two stop shoulders, one of said shoulders beingadapted to engage the said pivoted stop at the limit of the normaladding movement of the sector and the other stop shoulder being adaptedto engage said pivoted stop at the limit of the additional one spaceadding movement of the sector when actuated for transfer.

6. In a calculating machine of the class described having pivotedoscillating adding sector racks, the combination of a transfer leverpivoted axially in association with an adding sector and formed withgear teeth in an arc concentric 'with its axis, an oscillating driverfor the adding sector pivotally mounted co-axially with the sector andadapted to be connected to co-operating type-positioning means, aplanetary gear carried 4 by said driver in mesh with the teeth of thetransfer lever, gear teeth on the adding sector meshing with the teethof the planetary gear, a pivoted catch normally holding the transferlever against movement and formed with a trip finger adapted to beengaged by the transfer tripping-' means of the accumulator unit of thenext lower order to release said catch from the transfer lever, and aspring to move the transfer lever when released from its associatedcatch and thereby move the adding sector one space in adding directionfor the transfer of tens.

7. In a calculating machine of the class described having pivotedoscillating adding sector racks and accumulator registering unitsconsisting of actuating pinions and transfer tripping means associatedwith the adding racks in denominational order, the combination of atransfer lever pivoted axially in association with an adding sector andformed with gear teeth in an arc concentric with its axis, anoscillating driver i for the adding sector pivotally mounted co-axiallytherewith, a planetary gear carried by said driver in mesh with theteeth of the transfer lever, gear teeth on the adding sector meshingwith teeth on the planetary gear, a pivoted catch normally holding thetransfer lever against movement and adapted to be engaged by thetransfer tripping means of the accumulator unit of the next lower orderto release said catch from the transfer lever, and means to move saidtransfer lever when released from its catch and thereby move the addingsector one space in adding direction for the transfer of tens.

8. In a calculating machine wherein an accumulator registering unithaving an actuating pinion and a transfer tripping means are associatedwith an oscillating adding sector rack, the combination of anoscillating driver for an adding sector adapted to be connected to atype positioning means, oscillating means connecting the driver to theadding sector to impart to the sector its movement, means connecting thesaid oscillating means to the adding sector, spring actuated meansadapted to be released by the transfer tripping means of the accumulatorunit of the next lower order and engaging the oscillating meansconnecting the driver to the adding sector to move the said addingsector independently of its driver one space in adding direction for thetransfer of tens.

9. In a calculating machine of the class described having pivotedoscillating adding sector racks and accumulator registering unitsconsisting of actuating pinions and transfer tripping means associatedwith the adding racks in denominational order, the combination of atransfer lever pivoted axially with an adding sector, oscillating driverfor the said adding sector pivotally mounted co-axially therewith andadapted to be connected to co-operating type-positioning means, gearteeth formed on the transfer lever concentric with the pivot thereof, anoscillating pinion carried by the driver with its teeth in mesh with theteeth formed on the transfer lever, gear teeth formed on the addingsector and adapted to be engaged by the teeth of the oscillating pinion,a catch normally holding the transfer lever against movement and adaptedto be engaged by-the transfer tripping means of the accumulator unit ofthe next lower order to release said catch from the transfer lever,means operating upon the release of the transfer lever to move theadding sector one space in adding direction for the transfer of tens,and stop means adapted to engage and stop the adding sector when saidsector has moved one space in adding direction for the transfer of tens.

10. In a calculating machine of the class described having pivotedoscillating adding sector racks, the combination of an oscillatingdriver for actuating an adding sector through means imparting to thelatter a normal adding movement in excess of the arc of movement of saidoscillating driver, said means comprising a planetary gear rotatablymounted on the driver, gear teeth on the adding sector concentric withthe axis of movement of said driver and in engagement with the teeth ofsaid planetary gear, an oscillatable transfer lever axially mounted withreference to said adding sector and having fulcrumed gear teethconcentric with its axis and in engagement with the planetary gear, amovable stop for retaining the transfer lever stationary in normaloperating position, spring means for moving said transfer lever whensaid stop is released, means adapted to be operated by the transfertripping means of the accumulator unit of the next lower order torelease said stop to permit the transfer lever to actuate the planetarygear to move the adding sector one space in adding direction for thetransfer of tens, and stop means adapted to engage and stop the addingsector when said sector has moved one space in adding direction for thetransfer of tens.

11. In a calculating machine of the class described wherein anaccumulator registering unit having an actuating pinion and a transfertripping means are associated with an oscillating adding sector rack,the combination of an oscillating driver for the adding sector, anoscillating pinion carried by the driver, gear teeth on the addingsector adapted to mesh with the teeth of the said oscillating pinion andconnecting the driver to the adding sector to impart to the sector itsadding movement, a spring actuated transfer lever formed with teethengaging with the teeth of said pinion, a latch holding said transferlever stationary during adding movement of said sector and adapted to bereleased by the transfer tripping means of the accumulator unit of thenext lower order to permit the transfer lever to actuate said pinion tomove the said adding sector one space in adding direction for thetransfer of tens, and stop means adapted to engage and stop the addingsector when said sector has moved one space in adding direction for thetransfer of tens.

GLENN J. BARRETT.

